Energy-saving and energy-storing method of conveying belt system

Abstract

The invention relates to the technical field of belt conveyor control and energy conservation and storage of belt conveyors, in particular to an energy conservation and storage method of a conveying belt system, which converts kinetic energy generated in the deviation process of a conveying belt into hydraulic driving force by driving a driving shaft of a hydraulic pump to rotate. Hydraulic oil in the system is driven by hydraulic driving force to enter the execution oil cylinder, kinetic energy generated in the system is converted into driving power of the execution oil cylinder, then the hydraulic oil which cannot be absorbed by the execution oil cylinder is stored in an energy accumulator of the energy storage assembly, and energy saving and energy storage of the conveying belt system are achieved. By the adoption of the energy-saving energy storage method of the conveying belt system, electric energy is not needed, self-adaptive adjustment after the conveying belt deviates is achieved through kinetic energy generated when the conveying belt runs, meanwhile, part of the kinetic energy of the conveying belt is stored in the energy storage assembly in the form of pressure energy, and energy can be provided for the conveying belt system and other hydraulic devices; energy is saved, and meanwhile energy conversion and storage are achieved.

Description

[0001] The present application is a divisional application, the original application has a filing date of March 28, 2025, the title of the invention is "conveyor belt system and self-adaptive conveyor belt deviation correction system", and the application number is 202510378129.4. TECHNICAL FIELD

[0002] The present application relates to the field of belt conveyor control and energy-saving storage technology of belt conveyor, in particular to an energy-saving and energy-storing method of a conveyor belt system. BACKGROUND

[0003] Belt conveyors are widely used in material transportation in fields such as ports, power plants and mines, greatly improving the conveying efficiency of bulk materials. Conveyor belt deviation is a common problem in belt conveyors, and is one of the main reasons for sudden shutdown, material scattering, rack blockage, and shortening of the service life of the conveyor belt, which not only affects enterprise production, but also causes environmental pollution. The current mechanisms to solve the deviation problem mainly include mechanical deviation correction mechanisms and electrically controlled deviation correction mechanisms. The mechanical deviation correction mechanism is mostly a passive centering structure, which cannot continuously provide stable centering force, resulting in unsatisfactory deviation correction effect. Although the electrically controlled deviation correction system can provide accurate deviation correction force by relying on an electric control system, it requires a complete power supply and control device. Since the working environment of the belt conveyor is relatively poor, the deviation correction system often works in a poor working environment and frequently moves during correction. The electric control system uses electronic components for control, and its reliability is affected in a poor working environment, resulting in frequent faults and seriously affecting its use effect.

[0004] To this end, mechanical correction device appears, such as the disclosure number CN 101214881A Chinese invention patent discloses a kind of liquid control linkage correction machine involves the liquid control detection system, the system is by two detection wheels, two hydraulic pumps, a central control station, an oil cylinder, a temperature sensor through oil pipe connection composition hydraulic circuit.Detection wheel is between the two groups of linkage carrier roller of linkage correction mechanism, the two sides of the edge of belt, to detect whether the belt runs in the center of conveyor frame, detection wheel is installed on the shaft head of hydraulic pump, when the belt deviates from the center of conveyor frame and runs, touches detection wheel rim, drives hydraulic pump to rotate, provides power for hydraulic system, oil cylinder is in the flat layer of linkage correction mechanism frame, cylinder body is hinged with frame border, piston end is hinged with the end of driving arm frame of linkage centering frame, to drive linkage correction mechanism, central control station is used to control the extension and retraction of oil cylinder piston in sequence, when the belt runs in the center, the edge of belt touches the detection wheel of offset side and drives detection wheel to rotate, detection wheel drives hydraulic pump to press to central control station, controls oil cylinder through logic valve group in central control station to set sequence to push or pull piston rod, the push-pull of oil cylinder piston rod drives driving arm rod, the shaft of middle driving arm rod directly drives middle driving carrier support, the two sides of driving arm are driven by universal coupling to drive the two sides of tilting driving carrier support shaft, driving link connects the middle and both sides of driving arm rod, one end of driving carrier support is hinged to drive the corresponding end of driven carrier support through driven link, so that each carrier roller on the driving carrier support and driven carrier support realizes synchronous clockwise or counterclockwise synchronous deflection with the shaft of respective carrier support as the center, the linear motion direction of deflected carrier roller is inconsistent with the running direction of belt, the transverse friction force generated between them drives the belt back between the two detection wheels, i.e. back to the center of conveyor frame. The system and method do not use power, rely on the friction force between the belt running deviation and the detection wheel to drive the detection wheel to rotate, control the oil cylinder to drive the correction mechanism to act through the rotation of the detection wheel, and correct the transport belt. In this system, although correction is achieved, a set of correction device often cannot provide enough correction force, the correction effect is not ideal, the friction force between the detection wheel and the conveyor belt always exists, the hydraulic pump is always in working state, the pressure of the correction system is continuously rising, affecting the service life of components, at the same time, the kinetic energy of the running deviation of the conveyor belt is not fully utilized. In addition, during belt operation, the running deviation of the conveyor belt is a complex dynamic process, and the running deviation correction work always exists, even if enough correction force is obtained, the running deviation of the conveyor belt is corrected, but this correction is only temporary, and only prevents the belt from running deviation. Therefore, the running deviation correction of the conveyor belt is a dynamic and continuous process, and the kinetic energy generated during the running deviation process of the conveyor belt is not fully utilized. SUMMARY

[0005] The application provides an energy-saving and energy-storing method for a conveying belt system.

[0006] The application is achieved by the following technical solutions: The energy-saving and energy-storing method for the conveying belt system converts the kinetic energy generated in the process of conveying belt deviation into hydraulic driving force through the rotation of the driving hydraulic pump driving shaft, drives the hydraulic oil in the system into the execution cylinder through the hydraulic driving force, converts the kinetic energy generated in the system into the driving force of the execution cylinder, and stores the hydraulic oil that cannot be absorbed by the execution cylinder in the energy accumulator of the energy storage assembly, thereby achieving energy-saving and energy-storing of the conveying belt system.

[0007] The hydraulic oil stored in the energy accumulator is supplied to other hydraulic actuators, and / or the hydraulic oil stored in the energy accumulator is returned to the oil tank to supplement the consumption of the oil in the oil tank.

[0008] The adaptive conveying belt deviation correction system is used to complete the energy-saving and energy-storing of the conveying belt system, the adaptive conveying belt deviation correction system comprises at least one deviation correction device, the deviation correction device comprises a deviation correction mechanism, an execution cylinder, a control assembly and at least two detection driving assemblies, the execution cylinder drives the deviation correction mechanism to act on the conveying belt to correct the deviation, the detection driving assembly comprises a detection driving wheel and a hydraulic pump, the wheel shaft of the detection driving wheel is connected with the driving shaft of the hydraulic pump, the control assembly controls the on-off of the oil passage between the hydraulic pump and the execution cylinder, and the adaptive conveying belt deviation correction system further comprises an energy storage assembly, the control assembly comprises a hydraulic control reversing device and an oil tank, the hydraulic pump is communicated with the oil tank to suck oil, the two cavities of the execution cylinder are respectively communicated with corresponding hydraulic pumps through the hydraulic control reversing device, the output end of the execution cylinder is connected with the input end of the deviation correction mechanism, under the action of one hydraulic pump, the hydraulic oil in the corresponding oil tank can enter one end cavity of the execution cylinder through the hydraulic control reversing device, and meanwhile, the hydraulic oil in the other cavity of the execution cylinder returns to the corresponding oil tank through the hydraulic control reversing device, the energy storage assembly comprises an energy accumulator, the energy accumulator is communicated with the oil outlet of the hydraulic pump through an energy accumulator energy storage branch, detection driving wheels are arranged on the two sides of the conveying belt, when the conveying belt deviates, the conveying belt drives the detection driving wheel to drive the rotation of the driving shaft of the hydraulic pump, and the kinetic energy generated in the process of conveying belt deviation is converted into hydraulic driving force through the rotation of the driving shaft of the hydraulic pump.

[0009] When the oil outlet of the hydraulic pump reaches a certain pressure value, the energy accumulator energy storage branch is communicated, so that the energy accumulator is communicated with the oil return port of the hydraulic control reversing device and the oil outlet of the hydraulic pump, and the hydraulic oil enters the energy accumulator; the hydraulic pump is communicated with the energy accumulator energy storage branch of the corresponding energy storage assembly, when a plurality of deviation correction devices are arranged, more than two detection driving assemblies are correspondingly provided with one energy storage assembly, and the energy storage assembly on each side comprises at least one flow combining valve, and the hydraulic actuator branches of a plurality of energy storage assemblies are connected with the flow combining valve.

[0010] The hydraulic control reversing device is a three-position five-way hydraulic control reversing valve, which comprises a valve core and a valve body, a valve core hole is arranged on the valve body, the valve core is located in the valve core hole, control cavities E and F are arranged at two ends of the valve body, the control cavities E and F are communicated with the valve core hole, a hydraulic control reversing valve oil inlet A and a hydraulic control reversing valve oil inlet B, a hydraulic control reversing valve oil outlet M and a hydraulic control reversing valve oil outlet N and a hydraulic control reversing valve oil return port T which can be communicated with the valve core hole are arranged on the valve body, the three-position five-way hydraulic control reversing valve has a middle position in which the hydraulic control reversing valve oil inlet A and the control cavity F are communicated, the hydraulic control reversing valve oil inlet B and the control cavity E are communicated, and the hydraulic control reversing valve oil inlet A, the hydraulic control reversing valve oil inlet B, the hydraulic control reversing valve oil outlet M, the hydraulic control reversing valve oil outlet N and the hydraulic control reversing valve oil return port T are not communicated with each other, the left side position in which the hydraulic control reversing valve oil inlet A and the hydraulic control reversing valve oil outlet M are communicated and the hydraulic control reversing valve oil outlet N and the hydraulic control reversing valve oil return port T are communicated, the right side position in which the hydraulic control reversing valve oil inlet B and the hydraulic control reversing valve oil outlet N are communicated and the hydraulic control reversing valve oil outlet M and the oil return port T are communicated, and the oil outlets of the hydraulic pumps of the detection driving assemblies arranged in pairs are communicated with the hydraulic control reversing valve oil inlet A and the hydraulic control reversing valve oil inlet B of the three-position five-way hydraulic control reversing valve through the hydraulic pump oil channels.

[0011] The hydraulic actuator branch includes a hydraulic actuator branch oil channel.

[0012] The hydraulic actuator is a tensioning oil cylinder for conveying belt tensioning, the tensioning oil cylinder is communicated with the joint of the energy storage assembly through the joint, when the hydraulic oil in the accumulator reaches a certain amount, the tensioning oil cylinder is communicated with the accumulator, and the accumulator supplies the hydraulic oil for the tensioning oil cylinder.

[0013] When other hydraulic systems need hydraulic oil, the downstream hydraulic actuator is connected, the manual reversing valve is switched to the working position, the throttle valve is adjusted according to the system requirement, so that the downstream hydraulic actuator is provided with the required pressure and flow of the hydraulic oil, when the downstream hydraulic actuator completes the corresponding action, the manual reversing valve is switched to the initial position, the hydraulic oil in the downstream actuator is released back to the oil tank, when the conveying belt is still in the deviation state after being corrected by the plurality of deviation correction devices, the hydraulic oil of the energy storage assembly is connected to the tensioning oil cylinder through the joint in the manifold valve, and the tensioning degree of the conveying belt is adjusted through the tensioning oil cylinder, so that the deviation of the conveying belt is adjusted.

[0014] Compared with the prior art, the present application has the following advantages: The energy-saving and energy-storing method of the conveying belt system of the application does not need electric energy, and realizes self-adaptive adjustment of the conveying belt after deviation by means of kinetic energy when the conveying belt runs, and stores part of the kinetic energy of the conveying belt in the form of pressure energy in the energy-storing assembly, which can provide energy for the conveying belt system and other hydraulic devices, and realizes energy conversion and storage while saving energy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a mechanical structure schematic diagram of an embodiment of the self-adaptive conveying belt deviation rectifying system of the application. Figure 2 It is a structure schematic diagram of an embodiment of the detection and driving assembly of the application. Figure 3 It is a structure schematic diagram of an embodiment of the left energy-storing assembly of the application. Figure 4 It is a structure schematic diagram of an embodiment of the right energy-storing assembly of the application. Figure 5 It is a control mechanism principle diagram of an embodiment of the self-adaptive conveying belt deviation rectifying system of the application.

[0016] Figure 6 It is a control mechanism principle diagram of another embodiment of the self-adaptive conveying belt deviation rectifying system of the application.

[0017] Figure 7 It is an energy-storing assembly arrangement embodiment diagram of the self-adaptive conveying belt deviation rectifying system of the application. Figure 8 It is an arrangement embodiment diagram of the detection and driving assembly in each deviation rectifying mechanism of the self-adaptive conveying belt deviation rectifying system of the application. Figure 9 It is a structure schematic diagram of an embodiment of the manifold valve of the application. Figure 10 It is a structure schematic diagram of an embodiment of the three-position five-way hydraulic control reversing valve of the application, and the three-position five-way hydraulic control reversing valve is in the middle position. Figure 11 It is a schematic diagram of the on-off state of the three-position five-way hydraulic control reversing valve of the application when the three-position five-way hydraulic control reversing valve is in the left side position. Figure 12 It is a schematic diagram of the on-off state of the three-position five-way hydraulic control reversing valve of the application when the three-position five-way hydraulic control reversing valve is in the right side position. Figure 13 It is a structure schematic diagram of an embodiment of the internal oil passage of the application.

[0018] REFERENCE SIGNS: Detection drive assembly 1, detection drive wheel 1-1, hydraulic pump 1-2, adjusting bolt 1-3, rotatable support 1-4, adjusting fixed support 1-5, elastic element 1-6, fixed bottom plate 1-7, pin shaft 1-8, adjusting nut 1-9, control assembly 2, hydraulic control reversing device 2-1, left sequence valve 2-2, right sequence valve 2-3, oil tank 2-4, oil suction port one 4, oil suction port two 5, sequence valve oil outlet 7, sequence valve oil outlet 10, left energy storage assembly 11, left throttle valve 11-1, left manual reversing valve 11-2, left two-way hydraulic control reversing valve 11-3, left normally open stop valve 11-4, left accumulator 11-5, left quick connector 11-6, left normally closed stop valve 11-7; left energy storage assembly oil outlet 12; left energy storage assembly oil inlet 13; left energy storage assembly energy storage oil port 14; right energy storage assembly 15, right throttle valve 15-1, right manual reversing valve 15-2, right two-way hydraulic control reversing valve 15-3, right stop valve 15-4, right accumulator 15-5, right quick connector 15-6, right energy storage assembly oil outlet 16, right energy storage assembly oil inlet 17, right energy storage assembly energy storage oil port 18; execution oil cylinder 19, deviation correction mechanism 20, left one energy storage assembly 22, left two energy storage assemblies 23, left flow valve 24, left three energy storage assemblies 25, left four energy storage assemblies 26, left tensioning oil cylinder 27, tail drum 28, right tensioning oil cylinder 29, right one energy storage assembly 30, right two energy storage assemblies 31, right flow valve 32, right three energy storage assemblies 33, right four energy storage assemblies 34, conveying belt 35, head drum 36, left one detection drive assembly 37, left two detection drive assemblies 38, left three detection drive assemblies 39, left four detection drive assemblies 40, right one detection drive assembly 41, right two detection drive assemblies 42, right three detection drive assemblies 43, right four detection drive assemblies 44, quick connector one 45, quick connector two 46, quick connector five 47, quick connector three 48, quick connector four 49, 50-valve core; 51-valve body; 52-valve core hole; 53-internal oil passage one; 54-internal oil passage two; A1-A port process hole one; A2-A port process hole two; B1-B port process hole one; B2-B port process hole two; E1-control cavity E process hole; F1-control cavity F process hole; M1-M port process hole; N1-N port process hole; T1-T port process hole. DETAILED DESCRIPTION

[0019] The technical solutions of the present application will be described in detail below in combination with specific embodiments and drawings. The following technical solutions of the present application are only specific embodiments, and are not a limitation on the embodiments of the present application. For the convenience of description, the oil inlet of the present application is consistent with the direction of the hydraulic oil pumped out by the hydraulic pump.

[0020] This invention provides an adaptive conveyor belt correction system and a conveyor belt system incorporating the adaptive correction system. The adaptive conveyor belt correction system includes an adaptive correction device and an energy-saving energy storage component. The adaptive correction device is hereinafter referred to as the correction device. Each correction device is used to correct the conveyor belt's deviation. The energy-saving energy storage component stores the kinetic energy generated by the correction device during the correction process—that is, the kinetic energy generated during conveyor belt deviation—in the form of pressure energy, providing a continuous energy source for the adaptive correction system. Simultaneously, the kinetic energy generated during conveyor belt deviation can also be utilized, thereby reducing the overall system's energy consumption.

[0021] It is best to use at least two belt alignment devices and two or more energy-saving energy storage components. The number and location of the alignment devices are determined based on the length of the conveyor belt and the location of the belt misalignment. When two or more sets of alignment devices are installed, they can be evenly distributed along the length of the conveyor belt, correcting the belt misalignment multiple times. Alternatively, they can be centrally installed at both ends of the conveyor belt to detect and control the misalignment at the beginning and end, thereby adjusting the overall belt misalignment from the beginning and end.

[0022] like Figure 1 Combination Figure 5 As shown, each correction device includes an actuating cylinder 19, a correction mechanism 20, a control component 2, and left and right side detection drive components 1. The correction mechanism 20 can adopt existing correction mechanisms. Generally, the left and right side detection drive components have the same structure and are collectively referred to as detection drive components. Figure 2 As shown, each detection drive assembly includes a detection drive wheel 1-1, a hydraulic pump 1-2, and a movable bracket. The detection drive wheel is connected to the drive shaft of the hydraulic pump, and when the detection drive wheel rotates, it drives the hydraulic pump to rotate. The movable bracket supports the hydraulic pump and is fixedly mounted on the frame of the correction mechanism.

[0023] The movable support preferably has the following structure: an adjusting fixed support 1-5, a rotatable support 1-4, an elastic element 1-6, and a fixed plate 1-7. A long strip-shaped hole is arranged on the adjusting fixed support, the length direction of the long strip-shaped hole is consistent with the length direction of the hydraulic pump shaft, the horizontal end of the adjusting fixed support 1-5 is fixed on the upper surface of the rotatable support 1-4 through a bolt, the long strip-shaped hole, and a bolt hole, and the adjusting fixed support can be relatively moved on the rotatable support through the long strip-shaped hole, so as to adjust the relative position of the detection driving wheel 1-1 and the conveying belt; the hydraulic pump 1-2 is fixed on the vertical end of the adjusting fixed support 1-5 through a bolt; the adjusting bolt 1-3 passes through the long strip-shaped hole arranged on the adjusting fixed support 1-5 and the through hole arranged on the rotatable support and is fixedly connected with the fixed bottom plate 1-7 located below the rotatable support, the adjusting nut 1-9 is arranged below the rotatable support 1-4 on the adjusting bolt, the elastic element is sleeved between the adjusting nut and the rotatable support 1-4, one end of the elastic element opposite to the end fixedly connected with the fixed plate 1-7 is rotatably fixedly connected with the end of the rotatable support 1-4 away from the detection driving wheel through the pin shaft 1-9, the force of the elastic element 1-7 can be adjusted through the adjusting nut, and the angle of the detection driving wheel 1-1 is adjusted through the pin shaft and the adjusting bolt.

[0024] As shown in Figure 5 The control assembly 2 includes a hydraulic control reversing device 2-1 and an oil tank 2-4. The liquid inlet of the hydraulic pump of each detection driving assembly is communicated with the oil suction port of the oil tank 2-4, the two cavities of the execution cylinder are communicated with the oil tank through the hydraulic control reversing device 2-1, and the output end of the execution cylinder is connected with the input end of the deviation rectifying mechanism 20. The hydraulic oil in each oil tank 2-4 can enter the one end cavity of the execution cylinder 19 through the hydraulic control reversing device 2-1, respectively. The hydraulic oil in the one cavity of the execution cylinder drives the execution cylinder 19 to move into the other cavity, drives the deviation rectifying mechanism to act, and at the same time, the hydraulic oil in the other cavity returns to the oil tank 2-4 through the hydraulic control reversing device 2-1. The connection oil channel of the hydraulic pump and the oil inlet of the hydraulic control reversing device is called a hydraulic pump oil channel. Each hydraulic pump is provided with one hydraulic pump oil channel communicated with the oil inlet of the hydraulic control reversing device. An energy storage branch is arranged on the hydraulic pump oil channel, and a sequence valve is arranged on the energy storage branch. The sequence valve is communicated with the hydraulic pump oil channel at the liquid inlet end, and the other end is used for connecting the energy storage assembly. When the sequence valve is opened, the hydraulic oil in the oil tank is stored in the energy storage assembly at a certain pressure under the action of the hydraulic pump.

[0025] Each detection driving assembly can be correspondingly provided with one energy storage assembly, each detection driving assembly can be correspondingly provided with multiple energy storage assemblies, or multiple detection driving assemblies can be collectively provided with one energy storage assembly.

[0026] The structure of each energy storage assembly is consistent. Take an energy storage assembly equipped with a hydraulic pump oil passage as an example. Two hydraulic pump oil passages of each deviation rectifying mechanism are respectively equipped with an energy storage assembly, which are left energy storage assembly 11 and right energy storage assembly 15. Take the structure of the left energy storage assembly as an example to describe the structure of the energy storage assembly. The left energy storage assembly includes left energy accumulator 11-5 and left energy storage control circuit. The left energy storage control circuit includes left energy accumulator energy storage branch and left oil circulation branch for returning hydraulic oil in the left energy accumulator to the oil tank. The left energy accumulator is connected with the left sequence valve through the left energy accumulator energy storage branch to realize the connection of the other end of the left sequence valve with the left energy storage assembly. When the pressure of the control assembly system, i.e. the pressure of the outlet of the left hydraulic pump, rises to the set value of the left sequence valve 2-2, the left sequence valve 2-2 is opened, and the hydraulic oil enters the left energy accumulator 11-5 through the left energy accumulator energy storage branch to store the hydraulic oil in the left energy accumulator. When the oil amount in the oil tank 2-4 is insufficient, the oil in the left energy accumulator is sent to the left oil tank 2-4 under the control of the left energy storage control circuit to supplement the insufficient oil amount of the left oil tank, and at the same time, the system pressure can be prevented from being too high to protect the system from being damaged by the high pressure. The following is an embodiment of the left energy accumulator energy storage branch, which includes left energy storage branch oil passage. The left two-way hydraulic directional control valve 11-3 and the left stop valve 11-4 are arranged on the left energy storage branch oil passage. The left two-way hydraulic directional control valve 11-3 and the left stop valve 11-4 are located on the oil passage between the left sequence valve and the left energy accumulator. When the oil cylinder 19 runs to the terminal point of the rodless chamber or the rod chamber, and the conveying belt has not yet separated from the left detection driving wheel 1-1, the left hydraulic pump 1-2 is still working, and then the left hydraulic system pressure rises to the set value of the left sequence valve 2-2, the left sequence valve 2-2 is opened, and the left hydraulic oil enters the left energy accumulator 11-5 through the left two-way hydraulic directional control valve 11-3 and the left stop valve 11-4 to store the hydraulic oil. The left oil circulation branch includes left oil circulation branch oil passage. The left normally closed stop valve 11-7 is arranged on the left oil circulation branch oil passage. One end of the left oil circulation branch oil passage is connected with the left energy storage branch oil passage, and the other end is connected with the oil return port of the oil tank. The connection point of the left oil circulation branch oil passage and the left energy storage branch oil passage is located between the left stop valve 11-4 and the left two-way hydraulic directional control valve 11-3, so that the oil in the left energy accumulator can return to the oil tank. When the oil tank needs to be supplied with oil, the left normally closed stop valve is opened to connect the left energy accumulator with the left oil tank, and the hydraulic oil in the left energy accumulator flows into the left oil tank.

[0027] Preferably, the left energy storage control circuit further comprises a left hydraulic actuator branch, the left hydraulic actuator branch comprising a left hydraulic actuator branch oil passage, a left hand-operated directional valve 11-2, a left hydraulic directional valve 11-3 and a left quick-change joint 11-6 being arranged on the left hydraulic actuator branch oil passage, the left hydraulic actuator branch oil passage being connected with the hand-operated directional valve through the left quick-change joint 11-6, when other hydraulic systems need hydraulic oil, the downstream hydraulic actuator only needs to be connected with the quick-change joint 11-6, the left hand-operated directional valve 11-2 is switched to the working position, and the required hydraulic oil is provided for the hydraulic actuator under the control of the left hydraulic actuator branch, when the downstream hydraulic actuator completes the corresponding action, the left hand-operated directional valve 11-2 is switched to the initial position, and the hydraulic oil in the downstream actuator is released back to the left oil tank 2-4. The following is an embodiment of the left hydraulic actuator branch, comprising a left hydraulic actuator branch oil passage, a left throttle valve 11-1, a left hand-operated directional valve 11-2 and a left quick-change joint 11-6 being arranged on the left hydraulic actuator branch oil passage; the oil inlet of the left hand-operated directional valve 11-2 is connected on the oil passage between the left two-way hydraulic directional valve 11-3 and the left stop valve 11-4, the oil outlet thereof is communicated with the left quick-change joint, the left throttle valve 11-1 is located between the left quick-change joint and the left hand-operated directional valve 11-2, and the oil return port of the left hand-operated directional valve is communicated with the oil return port of the left oil tank. When other hydraulic systems need hydraulic oil, the downstream hydraulic actuator only needs to be connected with the left hydraulic actuator branch through the left quick-change joint 11-6, the left hand-operated directional valve 11-2 is switched to the working position, and the left throttle valve 11-1 is adjusted according to the system requirement, so as to provide the required hydraulic oil for the downstream hydraulic actuator; when the downstream hydraulic actuator completes the corresponding action, the left hand-operated directional valve 11-2 is switched to the initial position, and the hydraulic oil in the downstream actuator is released back to the left oil tank 2-4. The connection structure of the right energy storage assembly and the right oil tank and the control assembly is the same, and will not be described again.

[0028] The deviation correction mechanism 20 can adopt a double-axis deviation correction mechanism, a single-axis deviation correction mechanism or other deviation correction mechanisms, as long as it can be combined with the detection and driving assembly of the present application and can correct the position of the conveying belt when the conveying belt deviates. In the present application, a double-axis deviation correction mechanism is taken as an example for description. Embodiments of the double-axis driving mechanism can be referred to the Chinese invention patent with publication number CN 101214881A, which discloses a passive hydraulic control linkage deviation correction machine, and the Chinese patent application with publication number CN221853203U, entitled a new split type double-axis deviation correction device. Other deviation correction mechanisms can be referred to the Chinese utility model patent with publication number 215438425U, entitled a PLC controlled full-automatic deviation correction device. These embodiments are only an inspiration, and do not necessarily adopt this structure, and do not constitute a limitation on the specific structure of the deviation correction mechanism of the present application. Both of the above two deviation correction mechanisms adopt a double-axis deviation correction mechanism.

[0029] The structure of the deviation rectifying mechanism of a new type of split double-axis deviation rectifying mechanism with publication number CN221853203U and the name of a new type of split double-axis deviation rectifying mechanism will be described as an example. As shown in Figure 1 The double-axis deviation rectifying mechanism mainly includes a supporting base, a first rotating mechanism, a second rotating mechanism, a third rotating mechanism, a split connecting rod mechanism for driving the first rotating mechanism, the second rotating mechanism, and the third rotating mechanism to deflect, and an execution oil cylinder. The second rotating mechanism and the third rotating mechanism are the same in structure and each includes a driving rotating roller frame, a driven rotating roller frame, and a split rotating roller. The driving rotating roller frame and the driven rotating roller frame are respectively provided with a split rotating roller. The first rotating mechanism includes a driving rotating roller frame, a driven rotating roller frame, and a load roller. The driving rotating roller frame and the driven rotating roller frame are respectively provided with a load roller. The first rotating mechanism is located at the middle part of the supporting base. The second rotating mechanism and the third rotating mechanism are respectively located at the two sides of the first rotating mechanism. In this way, one load roller is arranged at each side of the supporting base, and one pair of rotating rollers is arranged at the two ends of the supporting base. The two rotating rollers are located at the two sides of the supporting base. The axis of the rotating roller and the load roller on the same side is located in the same plane, forming a single-axis deviation rectifying unit. In the present application, there are two single-axis deviation rectifying units arranged in parallel and opposite directions, forming a double-axis deviation rectifying mechanism. The double-axis deviation rectifying mechanism has a relatively large correction force for the conveying belt.

[0030] The conveying belt is located between the turning rollers on both sides of the double-axis rectification mechanism, and is supported by the bearing rollers in the middle, and the cross section of the conveying belt constitutes a groove shape. Left and right detection driving assemblies 1 are arranged on both sides of the supporting base, the left detection driving assembly 1 is welded on the left side of the bracket of the double-axis rectification mechanism 20, and the right detection driving assembly 1 is arranged on the right side of the bracket of the double-axis rectification mechanism, the length direction of the wheel axis of the detection driving wheel of each detection driving assembly is perpendicular or slightly inclined to the conveying direction of the conveying belt, the high and low positions and the front and rear positions correspond to the positions of the edge of the conveying belt, when the conveying belt deviates, the detection driving wheel can be in contact with the edge of the conveying belt, preferably, the right and left detection driving assemblies 1 are symmetrically arranged on both sides of the double-axis rectification mechanism; under normal circumstances, the axis of the turning roller is perpendicular to the running direction of the conveying belt, and the position of the turning roller is adapted to the position of the conveying belt, when the conveying belt deviates, the turning roller bracket is deflected under the driving of the actuating cylinder, and the turning roller can be in contact with the conveying belt when the turning roller bracket is deflected, so as to rectify the conveying belt. The double-axis rectification mechanism is taken as an example to illustrate the rectification system. One actuating cylinder 19 is arranged in each rectification device, the turning roller brackets on the left and right sides of the double-axis rectification mechanism are driven to rotate synchronously by the actuating cylinder, so that the turning rollers on both sides of the conveying belt move synchronously, and the different direction deviations of the conveying belt can be rectified. Each control assembly 2 is connected with the actuating cylinder, and the movement of the actuating cylinder is controlled.

[0031] The number of the deviation rectifying devices depends on the length of the conveying belt and the specific conditions. Generally, one deviation rectifying device can be arranged for a short conveying belt, but at least two deviation rectifying devices are usually arranged, so that the deviation rectifying devices form a deviation rectifying group to provide greater deviation rectifying force for the conveying belt. When more than two deviation rectifying devices are arranged, the deviation rectifying devices are arranged along the length of the conveying belt, so that there are more than two detection driving wheels and rotating rollers on both sides of the conveying belt, so that the deviation of the conveying belt can be detected more timely and greater deviation rectifying force can be provided. In particular, when more than three deviation rectifying devices are arranged along the conveying belt, the deviation rectifying devices can act through their respective sensing to timely correct the deviation of the conveying belt at different positions. When the conveying belt is very long, such arrangement requires more deviation rectifying devices. In order to reduce the number of deviation rectifying devices and provide better deviation rectifying effect, it is best to arrange at least one double-axis deviation rectifying mechanism at the head end and the tail end of the conveying belt. It is best to arrange 1-3 double-axis deviation rectifying mechanisms. One to three double-axis deviation rectifying mechanisms are arranged at the head end and the tail end of the conveying belt, so that one to three detection driving wheels are arranged at the two ends of the conveying belt. Since the reaction at the head end and the tail end of the conveying belt is the most prominent when the conveying belt deviates, the effect of correcting the head end and the tail end is the best, and the number of deviation rectifying devices used is the least. When a plurality of deviation rectifying mechanisms 20 are arranged, the detection driving wheels of the deviation rectifying mechanisms are not arranged at unequal distances from the conveying belt. In this way, the conveying belt can be rectified multiple times at different degrees. The conveying belt first meets the detection driving wheels at a short distance to be rectified, and then meets the detection driving wheels at a longer distance to be rectified. In this way, a better deviation rectifying effect can be achieved. The conveying belt system and the self-adaptive conveying belt deviation rectifying system adopting the structure of the embodiment of the present application have detection driving wheels of each deviation rectifying device on each side arranged at different distances from the edge of the conveying belt. In this way, the deviation rectifying mechanisms at different positions can be used for deviation rectifying according to the degree of deviation of the conveying belt, and self-adaptive adjustment is performed to multiply the deviation rectifying force.

[0032] In the present application, it is best to arrange one energy storage assembly for each deviation rectifying device, so that a plurality of energy storage assemblies can be distributed along the length direction of the conveying belt to provide hydraulic oil for the downstream hydraulic power devices at different positions. Generally, the left energy storage assembly 11 is mounted on the beam of the double-axis deviation rectifying mechanism 20, and the right energy storage assembly 15 is mounted on the opposite beam.

[0033] As Figure 7 and Figure 8As shown, two deviation correcting devices are respectively arranged at two ends of the conveying belt, and two energy storage assemblies are respectively arranged corresponding to each deviation correcting device, and the adaptive conveying belt deviation correcting system, the conveying belt system containing the adaptive deviation correcting system and the energy saving and energy storage method are described. The deviation correcting device one and the deviation correcting device two are arranged along the length direction of the conveying belt at the head end of the conveying belt, and the deviation correcting device three and the deviation correcting device four are arranged along the length direction of the conveying belt at the tail end of the conveying belt, the left one detection driving assembly 37 and the right one detection driving assembly 41 of the deviation correcting device one, the left two detection driving assembly 38 and the right two detection driving assembly 42 of the deviation correcting device two, the left three detection driving assembly 39 and the right three detection driving assembly 43 of the deviation correcting device three, and the left four detection driving assembly 40 and the right four detection driving assembly 44 of the deviation correcting device four are respectively arranged on both sides of the head and tail ends of the conveying belt along the length direction of the conveying belt, the distance between each detection driving assembly and the edge of the conveying belt can be equal or not equal, preferably, the distance between the detection driving wheels of each detection driving assembly and the conveying belt is not equal, for example, the distance between the two detection driving assemblies at the first position of the head and the edge of the conveying belt is m, the distance between the two detection driving assemblies at the second position of the head and the edge of the conveying belt is n, the distance between the two detection driving assemblies at the first position of the tail and the edge of the conveying belt is k, and the distance between the two detection driving assemblies at the second position of the tail and the edge of the conveying belt is h, m, n, h and k can be equal or not equal, m can be less than n, h can be less than k, or m can be greater than n, h can be greater than k, so that the deviation of the conveying belt can be adjusted twice at the head end and the tail end respectively, and the left one energy storage assembly 22, the left two energy storage assembly 23, the right one energy storage assembly 30, the right two energy storage assembly 31, the left three energy storage assembly 25, the left four energy storage assembly 26, the right three energy storage assembly 33 and the right four energy storage assembly 34 are respectively arranged on both sides of the conveying belt corresponding to each deviation correcting device, the conveying belt 35 is wound on the head drum 36 and the tail drum 28, and the right tension cylinder 29 and the left tension cylinder 27 are arranged. The working process is as follows: Figure 7 As shown, when the head end of the conveying belt deviates to the left side, the conveying belt contacts the detection driving wheel 1-1 of the nearest left one detection driving assembly 37, the power of the conveying belt drives the detection driving wheel 1-1 to rotate, drives the input shaft of the hydraulic pump 1-2 to rotate, the hydraulic pump 1-2 sucks oil from the oil suction port one 4 of the oil tank, discharges the hydraulic liquid through the hydraulic control reversing valve inlet A, enters the rodless cavity of the executing cylinder 19 through the hydraulic control reversing device 2-1, drives the left one-way deviation correcting unit of the double-shaft line deviation correcting mechanism 20 to move to the running direction of the conveying belt, corrects the deviation of the conveying belt, and at the same time converts the kinetic energy of the conveying belt into the pressure energy of the hydraulic system. After being corrected by the deviation correcting device one, if the conveying belt still deviates, it contacts the detection driving wheel two of the deviation correcting device two far away from the conveying belt, and the deviation correcting device two continues to correct the deviation of the conveying belt.

[0034] When the conveying belt is longer, the number of deviation rectifying devices can be increased, the distance between the detection driving wheel of each deviation rectifying device and the conveying belt is not equal, and multiple deviation rectifications are performed to increase the deviation rectification strength of the conveying belt until the deviation of the conveying belt is rectified or the expected rectification effect is achieved.

[0035] In the process of deviation rectification by the deviation rectifying device, when the rodless chamber of the oil cylinder 19 reaches the end point, the conveying belt is still not separated from the detection driving wheel 1-1, at this time, the left hydraulic pump 1-2 is still working, and then the system pressure rises to reach the set value of the left sequence valve 2-2, the left sequence valve 2-2 is opened, and the hydraulic oil enters the left accumulator 11-5 through the left two-way hydraulic control reversing valve 11-3 and the left stop valve 11-4 to store the hydraulic oil; When the deviation of the conveying belt is rectified and the conveying belt is separated from the detection driving wheel 1-1, the left hydraulic pump 1-2 stops working, the oil cylinder 19 and the double-axis deviation rectifying mechanism 20 stop at the current position, and the left accumulator 11-5 stops storing oil.

[0036] When the conveying belt continues to deviate after being rectified by the deviation rectifying device, the conveying belt contacts the detection driving wheel in the left detection driving assembly 38, the left detection driving assembly is still working, and the left hydraulic pump 1-2 is still storing energy for the left accumulator. To prevent the pressure of the left accumulator from being too high, the left normally open stop valve 11-7 can be opened to release the pressure of the left accumulator. Similarly, when the left deviation rectifying device far away from the conveying belt is rectified, the left detection driving wheel close to the conveying belt is continuously working, which will also cause the pressure of the left accumulator to be too high. At this time, the left stop valve 11-7 also needs to be opened to release the pressure in the left accumulator.

[0037] When other hydraulic systems need hydraulic oil, the left quick-change connector 11-6 is inserted to connect the downstream hydraulic actuator, the left manual reversing valve 11-2 is turned to the working position, and the left throttle valve 11-1 is adjusted according to the system needs, so as to provide the required pressure and flow of hydraulic oil for the downstream hydraulic actuator; when the downstream hydraulic actuator completes the corresponding action, the left manual reversing valve 11-2 is turned to the initial position, and the hydraulic oil in the downstream actuator such as the jack and the tension cylinder is released back to the left oil tank 2-4; When the head of the conveyor belt runs to the right, the conveyor belt contacts the right side of the right first detection driving wheel 1-1 of the right first detection driving assembly which is located on the right side and closest to the conveyor belt, the power of the conveyor belt drives the detection driving wheel 1-1 to rotate, and drives the input shaft of the right hydraulic pump 1-2 to rotate, the right hydraulic pump 1-2 sucks oil from the oil suction port 2 of the oil tank, and the oil enters the rod cavity of the execution cylinder 19 through the hydraulic control reversing device 2-1, drives the double-axis correction mechanism 20 to move towards the running direction of the conveyor belt, so as to realize the conversion of the kinetic energy of the conveyor belt into the pressure energy of the hydraulic system; similarly, when the conveyor belt does not achieve the correction effect, the conveyor belt contacts the right second detection driving wheel of the right second detection driving assembly which is far away from the conveyor belt, and the second correction mechanism is used to strengthen the correction. When the length of the conveyor belt is relatively long and still cannot achieve the correction purpose, the correction mechanism is increased, the distance between the detection driving wheels on both sides of the correction mechanism and the conveyor belt is greater than the distance between the right second detection driving wheel and the conveyor belt, until the predetermined correction effect is achieved. Similarly, during the correction process, when the rod cavity of the execution cylinder 19 reaches the end point, the conveyor belt is still not separated from the detection driving wheel 1-1, at this time the right hydraulic pump 1-2 is still working, then the system pressure rises, when the system pressure reaches the set value of the right sequence valve 2-3, the right sequence valve 2-3 is opened, the hydraulic oil enters the right accumulator 15-5 through the right second directional valve 15-3 and the right stop valve 15-4, and the hydraulic oil is stored; after the conveyor belt is separated from the right side detection driving wheel 1-1, the right hydraulic pump 1-2 stops working, the execution cylinder 19 and the double-axis correction mechanism 20 stop at the current position, and the right accumulator 15-5 stops storing oil. When other hydraulic systems need hydraulic oil, only need to insert the right quick-change connector 15-6 to connect the downstream hydraulic execution mechanism, move the right manual reversing valve 15-2 to the working position and adjust the right throttle valve 15-1 according to the system requirement, so as to provide the required pressure and flow of the hydraulic oil for the downstream hydraulic execution mechanism; after the downstream hydraulic execution mechanism completes the corresponding action, move the right manual reversing valve 15-2 to the initial position, and the hydraulic oil in the downstream execution mechanism is released back to the right oil tank 2-4; after the correction by the correction device, when the conveyor belt is separated from the corresponding detection driving wheel, the execution cylinder and the double-axis correction mechanism stop at the current position, and the right accumulator stops storing oil.

[0038] When the tail of the conveyor belt runs to the left, the detection driving wheel of the left third detection driving assembly which is located at the tail end and closest to the tail end contacts the conveyor belt, and the third correction device is started to correct, and the process is the same as that of the head running to the right. When the tail of the conveyor belt runs to the right, the detection driving wheel of the right third detection driving assembly which is located at the tail end and closest to the right side of the tail end contacts the conveyor belt, and the third correction device is started to correct, and the process is the same as that of the head running to the right.

[0039] The downstream hydraulic execution mechanism can be a tensioning cylinder, a hydraulic jack for maintenance, or other devices that work by using hydraulic pressure. For example Figure 5The tension cylinder can be energized by the following method: when the head of the conveying belt deviates to the left, the deviation of the head of the conveying belt is corrected, when the execution cylinder 19 of the deviation correcting device II moves to the end point and the conveying belt is still in the deviation state, the deviation of the conveying belt can be continuously adjusted by the following method: the left quick connector of the left energy storage assembly is connected with the rodless cavity of the tension cylinder, the right quick connector of the right energy storage assembly is connected with the rod cavity of the tension cylinder, the manual reversing valve in the left fourth and right fourth energy storage assemblies is reversely opened by using the principle of proximity, a loop is formed, the tension cylinder is actuated, and other energy storage assemblies can be opened according to actual conditions, and the deviation of the conveying belt is finally adjusted by the tension cylinder. Figure 6 When the hydraulic jack is energized for maintenance, the working process is as follows: the energy storage assembly is connected with the rodless cavity of the hydraulic jack through the hose with the quick connector, the manual reversing valve in the energy storage assembly is reversely opened, oil is supplied to the hydraulic jack, and the hydraulic jack is lifted; when the maintenance work is completed, the corresponding manual reversing valve is closed, the hydraulic oil in the rodless cavity of the hydraulic jack returns to the tank under the action of the load, and the cyclic utilization of energy is realized.

[0040] In the application, preferably, a current collecting valve is arranged, the energy stored in each assembly deviation correcting device is effectively integrated through the current collecting valve, and the current collecting valve is used by the whole system. The quick connector of each energy storage assembly is connected with the interface of the current collecting valve, so that the plurality of energy storage assemblies are connected with the same current collecting valve, the hydraulic oil in each energy storage assembly is shared through the current collecting valve, and the actuator can be connected with one interface of the current collecting valve, so that the hydraulic oil stored in any energy storage assembly is borrowed. For example, the quick connector of the first left energy storage assembly in the deviation correcting device I is connected with the quick connector one 45 of the current collecting valve 24, the quick connector of the second left energy storage assembly in the deviation correcting device II is connected with the quick connector two 46 of the current collecting valve 24, the quick connector of the third left energy storage assembly in the deviation correcting device III is connected with the quick connector three 48 of the current collecting valve 24, the quick connector of the fourth left energy storage assembly in the deviation correcting device IV is connected with the quick connector four 49 of the current collecting valve 24, and the quick connector five 47 of the current collecting valve 24 is connected with the downstream hydraulic actuator. In this way, the downstream actuator can use the hydraulic oil in any energy storage assembly or use the hydraulic oil in a plurality of energy storage assemblies; the connection mode of the right energy storage assembly with the current collecting valve 32 is the same as that of the left energy storage assembly with the current collecting valve 24.

[0041] Preferably, the current collecting valve is designed in a standardized manner, the interface is in the form of a quick connector, the connection is flexible and convenient, the energy storage assembly can be connected with the downstream hydraulic actuator in a plurality of combinations, and a plurality of forms such as one-to-many or many-to-one can be realized.

[0042] The system and method can automatically correct the deviation of the belt conveying system, store the kinetic energy generated during the deviation, and utilize the stored energy for hydraulic tension control, further improving the correction effect; for hydraulic jack energy supply during on-site maintenance and auxiliary energy supply for other hydraulic devices. The entire process does not require electric energy, simplifies system control, reduces failures caused by electric control systems, and reduces the failure rate of electric control systems.

[0043] As shown in Figures 10-13 In the present application, preferably, the hydraulic control reversing device includes a three-position five-way hydraulic control reversing valve, and the action of the output end of an execution oil cylinder is controlled by one three-position five-way hydraulic control reversing valve and two hydraulic pumps. The three-position five-way hydraulic control reversing valve in the present application includes a valve body 51 and a valve core 50, a valve core hole 52 is arranged on the valve body, two control cavities are arranged at both ends of the valve body and communicate with the valve core hole, which are control cavity E and control cavity F respectively, two inlets are respectively hydraulic control reversing valve oil inlet A and hydraulic control reversing valve oil inlet B, two outlets are respectively hydraulic control reversing valve oil outlet M and hydraulic control reversing valve oil outlet N, and a return oil port T is arranged. The inlet, outlet, return oil port, control cavity E and control cavity F of the hydraulic control reversing valve can communicate through the internal oil channel and the valve core hole. As shown in Figure 10 and 11As shown, the three-position five-way hydraulic control reversing valve has a hydraulic control reversing valve oil inlet A and a control cavity F communication, hydraulic control reversing valve oil inlet B and control cavity E communication, the intermediate position between the inlet, outlet and oil return port are not connected, hydraulic control reversing valve oil inlet A and hydraulic control reversing valve oil outlet M port communication while hydraulic control reversing valve oil outlet N port and oil return port T communication left side, hydraulic control reversing valve oil inlet B and hydraulic control reversing valve oil outlet N communication while hydraulic control reversing valve oil outlet M and oil return port T communication right side. The rod cavity of the execution cylinder is connected with the hydraulic control reversing valve oil outlet N, the rodless cavity is connected with the hydraulic control reversing valve oil outlet M, the pressure oil port one 3 of the left hydraulic pump 1-2 is connected with the hydraulic control reversing valve oil inlet A, the pressure oil port two 6 of the right hydraulic pump is connected with the hydraulic control reversing valve oil inlet B, and the oil return port T of the hydraulic control reversing valve is connected with the oil return port of the oil tank. Under normal circumstances, the hydraulic control reversing valve is in the intermediate position, when the conveying belt deviates to the left, the left detection driving wheel rotates to drive the left hydraulic pump to work, the hydraulic oil enters the hydraulic control reversing valve oil inlet A and enters the control cavity F through the internal oil channel and the valve core hole, pushes the valve core to move to the left side, the hydraulic control reversing valve is in the left side, the hydraulic control reversing valve oil inlet A and the hydraulic control reversing valve oil outlet M are connected, the hydraulic control reversing valve oil outlet N and the oil return port T are connected, the hydraulic oil is filled into the rodless cavity of the execution cylinder, the hydraulic oil in the rod cavity returns to the oil return port T through the hydraulic control reversing valve oil outlet N, and returns to the oil tank 2-4 through the oil return port T, the output end of the execution cylinder moves to the right side, thereby driving the left deviation correction mechanism to act on the conveying belt; when the conveying belt deviates to the right side, it contacts with the detection driving wheel located on the right side, drives the right hydraulic pump to work, the hydraulic oil enters the hydraulic control reversing valve oil inlet B and enters the control cavity E through the internal oil channel and the valve core hole, pushes the valve core to move to the right side, the hydraulic control reversing valve is in the right side, the hydraulic control reversing valve oil inlet B and the hydraulic control reversing valve oil outlet N are connected, the hydraulic control reversing valve oil outlet M and the oil return port T are connected, the hydraulic oil enters the rod cavity of the execution cylinder, pushes the output end to move to the left side, thereby driving the right deviation correction mechanism to act on the conveying belt, completing the control of the deviation correction mechanism, and the hydraulic oil in the rodless cavity returns to the oil return port T through the hydraulic control reversing valve oil outlet M, and returns to the oil tank through the oil return port T.

[0044] In the present application, the three-position five-way pilot-controlled reversing valve preferably adopts the following oil passage structure to realize interconnection and intercommunication, including internal oil passage one 53 and internal oil passage two 54 which are not connected to each other, the pilot-controlled reversing valve oil inlet is communicated with the valve core hole 51 through A process hole one A1, the internal oil passage two 54 is communicated with the valve core hole through A process hole two A2, the internal oil passage two 54 is communicated with the control cavity F through control cavity F process hole F1, so as to communicate the pilot-controlled reversing valve oil inlet A with the control cavity F through A process hole one A1, A process hole two A2, valve core hole, control cavity F process hole F1 and internal flow passage two, the pilot-controlled reversing valve oil inlet B is communicated with the valve core hole through B process hole one B1, the internal oil passage one 53 is communicated with the valve core hole through B process hole two B2, the internal oil passage one 53 is communicated with the control cavity E through control cavity E process hole E1, so as to communicate the pilot-controlled reversing valve oil inlet B with the control cavity E through B process hole one B1, B process hole two B2, valve core hole, control cavity E process hole E1 and internal flow passage one, the oil return port T is communicated with the valve core hole through T process hole T1; the pilot-controlled reversing valve liquid outlet M is communicated with the valve core hole through M process hole M1; the pilot-controlled reversing valve liquid outlet N is communicated with the valve core hole through N process hole N1. Among them, each process hole, such as A process hole one A1, A process hole two A2, control cavity F process hole F1, B process hole one B1, B process hole two B2, control cavity E process hole E1, T process hole T1, M process hole M1, N process hole N1, are only used as communication holes, and the free ends of each process hole are blind holes.

[0045] The working process of the three-position five-way hydraulic control reversing valve is as follows: under the condition that the conveying belt is not deviated normally, the three-position five-way hydraulic control reversing valve is in the middle position, when the left detection driving wheel drives the hydraulic pump to work, the hydraulic oil enters the oil inlet A of the hydraulic control reversing valve and enters the valve core hole through the A1 process hole A1 of the A port, and then enters the internal oil passage one through the A2 process hole A2 of the A port, and then enters the control cavity F through the F1 process hole F1 of the control cavity F, pushes the valve core to move to the left side to the left side position, makes the oil inlet A of the hydraulic control reversing valve communicate with the oil outlet M of the hydraulic control reversing valve, the oil outlet N of the hydraulic control reversing valve communicates with the oil return port T, the hydraulic oil enters the rodless cavity of the executing cylinder, so as to push the piston rod of the executing cylinder to move to the right side, makes the hydraulic oil in the rod cavity return to the oil tank through the oil outlet N of the hydraulic control reversing valve; when the right detection driving wheel drives the hydraulic pump to work, the hydraulic oil enters the oil inlet B of the hydraulic control reversing valve and enters the valve core hole through the B1 process hole B1 of the B port, and then enters the internal oil passage one through the B2 process hole B2 of the B port, and then enters the control cavity E through the E process hole of the control cavity E, pushes the valve core to move to the right side to the right side position, the oil inlet B of the hydraulic control reversing valve and the oil outlet N of the hydraulic control reversing valve are communicated with the valve core hole, so that the two are communicated, the oil outlet M of the hydraulic control reversing valve and the oil return port T are communicated with the valve core hole, so that the two are communicated, the hydraulic oil enters the rod cavity of the executing cylinder, the rodless cavity hydraulic oil returns to the oil tank through the oil outlet M of the hydraulic control reversing valve and the oil return port T, so as to realize that the hydraulic oil in the oil tank 2-4 can pass through the hydraulic control reversing device 2-1, enter one end cavity of the executing cylinder 19, push the executing cylinder 19 to move, drive the correction mechanism to act, at the same time, the hydraulic oil in the other cavity returns to the oil tank 2-4 through the hydraulic control reversing device 2-1, converts the kinetic energy of the conveying belt when deviating into pressure energy of the hydraulic system, so as to push the executing mechanism to move.

[0046] The correction system also has the following advantages: 1. The self-adaptive correction system is provided, the distances between the detection driving wheels of the correction devices and the conveying belt are different through the multiple correction devices at different positions, automatic adjustment of the conveying belt when deviating in different degrees is realized, the correction effect is strong, and the response speed is fast. 2. The self-adaptive correction system can store the kinetic energy of the conveying belt when deviating, the pressure energy is collected together through the confluence valve, the tensioning system is controlled and adjusted, so as to further control the conveying belt from deviating, and the energy can also be supplied to other hydraulic devices, such as the hydraulic jack and the tensioning cylinder used for maintenance, so as to achieve the purpose of energy saving and storage. 3. The energy saving and storage method can complement the energy stored in the energy storage components of the correction devices through the confluence valve, so as to make up for the problem of insufficient pressure energy when the executing mechanism needs continuous adjustment. 4、The energy storage assembly of the energy-saving energy storage method can provide pressure energy for the adjustment of the tensioning device when the conveying belt slips and further deviation correction of the conveying belt, and does not need to additionally configure a power system for the tensioning device; 5、The flexible detection and driving mechanism can be flexibly adjusted in position, is suitable for conveying belt systems of various widths, has simple system structure, high applicability and high reliability.

[0047] The above-described embodiments are only used to describe the preferred embodiments of the present application, and are not used to limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application defined by the claims.

Claims

1. An energy-saving energy storage method for a conveyor belt system, characterized in that, The kinetic energy generated during the conveyor belt deviation is converted into hydraulic driving force by driving the hydraulic pump to rotate the shaft. The hydraulic driving force drives the hydraulic oil in the system to enter the actuator cylinder, converting the kinetic energy generated in the system into the driving power of the actuator cylinder. The hydraulic oil that the actuator cylinder cannot absorb is stored in the accumulator of the energy storage component, realizing energy-saving energy storage of the conveyor belt system.

2. The energy-saving energy storage method for a conveyor belt system as described in claim 1, characterized in that, The hydraulic oil stored in the accumulator is supplied to other hydraulic actuators, and / or the hydraulic oil stored in the accumulator is returned to the oil tank to replenish the oil consumed in the tank.

3. The energy-saving energy storage method for a conveyor belt system as described in claim 1, characterized in that, An adaptive conveyor belt correction system is used to achieve energy-saving storage for the conveyor belt system. This system includes at least one correction device, comprising a correction mechanism, an actuator cylinder, a control component, and at least two detection drive components. The actuator cylinder drives the correction mechanism to correct the conveyor belt's alignment. Each detection drive component includes a detection drive wheel and a hydraulic pump, with the wheel axle connected to the hydraulic pump's drive shaft. The control component controls the flow of oil between the hydraulic pump and the actuator cylinder. The system also includes an energy storage component. The control component includes a hydraulic reversing device and an oil tank. The hydraulic pump is connected to the oil tank for oil intake. The two chambers of the actuator cylinder are connected to the hydraulic reversing device. The hydraulic pump is connected to the corresponding hydraulic pump, and the output end of the actuator cylinder is connected to the input end of the correction mechanism. Under the action of the hydraulic pump, the hydraulic oil in the corresponding oil tank can enter one end cavity of the actuator cylinder through the hydraulic control reversing device. At the same time, the hydraulic oil in the other cavity of the actuator cylinder returns to the corresponding oil tank through the hydraulic control reversing device. The energy storage component includes an accumulator. The accumulator is connected to the oil outlet of the hydraulic pump through the accumulator energy storage branch, so that detection drive wheels are set on both sides of the conveyor belt. When the conveyor belt deviates, the conveyor belt acts on the detection drive wheels to drive the hydraulic pump drive shaft to rotate, and converts the kinetic energy generated during the conveyor belt deviates into hydraulic driving force by driving the hydraulic pump drive shaft to rotate.

4. The energy-saving energy storage method for a conveyor belt system as described in claim 3, characterized in that, When the hydraulic pump's outlet reaches a certain pressure value, the accumulator's energy storage branch is connected, thereby connecting the accumulator with the return port of the hydraulic control reversing device and the outlet of the hydraulic pump, allowing hydraulic oil to enter the accumulator. Each hydraulic pump is connected to the accumulator's energy storage branch of its corresponding energy storage component. When multiple correction devices are installed, two or more detection and drive components are correspondingly equipped with one energy storage component. Each energy storage component includes at least one manifold valve, and the hydraulic actuator branches of multiple energy storage components are connected to the manifold valve.

5. The energy-saving energy storage method for a conveyor belt system as described in claim 3, characterized in that, The described hydraulic directional control device is a three-position five-way hydraulic directional control valve. The valve includes a valve core and a valve body. A valve core hole is provided on the valve body, and the valve core is located within the valve core hole. Control chambers E and F are provided at both ends of the valve body, and both control chambers E and F communicate with the valve core hole. The valve body is respectively provided with hydraulic directional control valve inlet ports A and B, hydraulic directional control valve outlet ports M and N, and a hydraulic directional control valve return port T, all communicating with the valve core hole. The three-position five-way hydraulic directional control valve has hydraulic directional control valve inlet port A communicating with control chamber F, and hydraulic directional control valve inlet port B communicating with control chamber E. The middle position is where the oil inlet A, hydraulic directional valve oil inlet B, hydraulic directional valve oil outlet M, hydraulic directional valve oil outlet N, and hydraulic directional valve return port T are not connected. The left position is where the hydraulic directional valve oil inlet A is connected to the hydraulic directional valve oil outlet M and the hydraulic directional valve oil outlet N is connected to the hydraulic directional valve return port T. The right position is where the hydraulic directional valve oil inlet B is connected to the hydraulic directional valve oil outlet N and the hydraulic directional valve oil outlet M is connected to the return port T. The oil outlets of the hydraulic pumps of the paired detection drive components are connected to the hydraulic directional valve oil inlets A and B of the three-position five-way hydraulic directional valve through their respective hydraulic pump oil passages.

6. An energy-saving energy storage method for a conveyor belt system as described in any one of claims 3-5, characterized in that, It includes a hydraulic actuator branch, which is connected to an accumulator. A connector is provided on the hydraulic actuator. The accumulator is connected to the downstream hydraulic actuator through the connector provided on the hydraulic actuator branch to supply oil. The hydraulic actuator branch includes hydraulic actuator branch oil passages.

7. The energy-saving energy storage method for a conveyor belt system as described in claim 6, characterized in that, The hydraulic actuator is a tensioning cylinder for tensioning the conveyor belt. The tensioning cylinder is connected to the connector of the energy storage component through a connector. When the hydraulic oil in the accumulator reaches a certain amount, the tensioning cylinder is connected to the accumulator, and the accumulator supplies hydraulic oil to the tensioning cylinder.

8. An energy-saving energy storage method for a conveyor belt system as described in any one of claims 3-5, characterized in that, When other hydraulic systems require hydraulic oil, connect the downstream hydraulic actuator, move the manual directional valve to the working position, and adjust the throttle valve according to system needs to provide the downstream hydraulic actuator with the required pressure and flow of hydraulic oil. After the downstream hydraulic actuator completes the corresponding action, move the manual directional valve back to the initial position, and the hydraulic oil in the downstream actuator is released back into the oil tank. After multiple deviation correction devices, if the conveyor belt is still in a deviation state, connect the hydraulic oil of the energy storage component to the tension cylinder through the connector in the manifold valve, and adjust the tension of the conveyor belt through the tension cylinder to adjust the deviation of the conveyor belt.

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